Elements and Compounds Test Review

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include hydrogen (H), oxygen (O), and gold (Au).

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together. Examples include water (H2O) and carbon dioxide (CO2).

Tags

NGSS.MS-PS1-1

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded. Examples include air and salad.

Front

What is the chemical symbol for sodium?

Back

The chemical symbol for sodium is Na.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O.

Tags

NGSS.MS-PS1-1

Front

What is the difference between an element and a compound?

Back

An element is a single type of atom, while a compound consists of two or more different types of atoms bonded together.

Front

What is the chemical symbol for krypton?

Back

The chemical symbol for krypton is Kr.

Front

What is a pure substance?

Back

A pure substance is a material that has a constant composition and consistent properties throughout. Examples include elements and compounds.

Tags

NGSS.MS-PS1-4

Front

What is the chemical formula for carbon dioxide?

Back

The chemical formula for carbon dioxide is CO2.

Tags

NGSS.MS-PS1-1

Front

What is the term for a substance made of only one type of atom?

Back

The term is 'element'.